Answer:
D. Harvard "Tastes, Ties, and Time (t-3)" study (2006-2009)" study
Explanation:
In 2006, Harvard conduct a (t-3) study that gains popularity. It was a Face-book study that plays with your emotions. This study doesn't share the mood manipulation which unsettled many of the users. It is a good example of social data is always murky and study themselves is completely creepy. In this study, the researcher collects the data without informed consent of objects throughout the data verse network.
Longitude is measured by imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. These lines are known as meridians. Each meridian measures one arcdegree of longitude. The distance around the Earth measures 360 degrees
Answer: the haj is the journey to mecca
